Pre-Permit Structural Review That Catches the Discontinuities
Helonic is an AI construction drawing analysis platform for Structural Engineers doing Pre-Permit Review.
Plan reviewers will trace your load paths. Helonic does it first.
What is pre-permit review for structural engineers?
Pre-permit review for structural engineers is a load-path and documentation check against what the AHJ will flag before drawings go in for permit. Helonic was built around the specific patterns structural plan reviewers most often flag - calibrated against AHJ correction notices and structural peer review comments across firms.
How does Helonic help structural engineers with pre-permit review?
Helonic tracks gravity and lateral load paths from roof to foundation, flagging any level where continuity breaks.
Traces load paths automatically
Helonic tracks gravity and lateral load paths from roof to foundation, flagging any level where continuity breaks.
Connection detail completeness
Every detail callout on the framing plans is checked against the detail sheets. References to non-existent details surface immediately.
Schedule reconciliation
Beam, column, and footing schedules cross-checked against the framing plans and sections. Discrepancies surface as findings.
Code citation verification
Code citations in general notes are checked against the actual adopted codes for the project's jurisdiction and edition.
Why do structural engineers fail pre-permit review?
Structural engineers fail pre-permit review when load paths break between levels, connection details are referenced but not drawn, or beam call-outs disagree with the schedule. What plan reviewers flag is documentation discipline - load path continuity from level to level, the consistency of beam call-outs between the framing plan and the schedule, whether the connection detail referenced by every moment frame actually exists in the set. These are exactly the items a human reviewer has the hardest time catching consistently across 80+ structural sheets.
How do structural engineers run pre-permit review with Helonic?
Drawings, schedules, and calc summary all indexed together.
Upload the structural set and calculations
Drawings, schedules, and calc summary all indexed together.
Run pre-permit checks
Load path tracing, schedule reconciliation, code citation verification - all in parallel.
Review by severity
Hard issues first (missing details, broken load paths), then documentation issues.
Resolve and re-run
Address findings, re-run, and confirm clean before permit submission.
What issues does Helonic catch in pre-permit review for structural engineers?
Helonic flags these pre-permit review issues when structural engineers review a set:
Moment frame at grid 3 shown on S-201 (Level 2) but no corresponding moment connection at the same grid on S-202 (Level 3) - lateral discontinuity
Beam call-out W18x40 on S-101 framing plan but the beam schedule lists W18x35 for the same mark
Detail callout 5/S-501 referenced from 14 locations but S-501 only contains details 1–4
Column C-12 shown on framing plans but missing from the column schedule
Footing F-3 dimensions don't match between the foundation plan and the footing schedule
General note 4 cites ASCE 7-10 wind loads but the project is permitted under ASCE 7-16
Which Helonic features matter for pre-permit review?
Helonic includes Gravity load path continuity tracing across all framing levels when structural engineers run this workflow.
Gravity load path continuity tracing across all framing levels
Lateral system completeness check (braces, moment frames, shear walls)
Connection detail reference integrity
Beam, column, footing schedule reconciliation with framing plans
ASCE 7 wind and seismic citation verification against jurisdiction
Structural code edition adoption tracking
What do practitioners say about pre-permit review for structural engineers?
“Structural engineers we talked with said the most painful plan check comments are the ones where the AHJ caught something that just slipped through documentation discipline - not a design error, but a reference inconsistency that any second reviewer would have flagged.”
Conversations with licensed structural engineers and structural peer reviewers across building, bridge, and institutional projects.
What do structural engineers ask about pre-permit review?
Does Helonic do structural calculations?
Helonic doesn't recompute beam sizes or perform structural analysis. Helonic checks documentation completeness, consistency, and code citation accuracy against what your calculations specify.
Can it handle existing-building structural drawings?
Helonic adapts to as-built drawings with existing condition annotations and demolition documentation.
What about post-tensioned slab drawings?
Helonic checks PT documentation discipline (tendon profile callouts, anchor details, stressing sequence notes) at the same depth as conventional structural.
Manas Gandhi
Co-founder & CTO, HelonicManas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.
- AI for technical document understanding
- Cross-discipline coordination workflows
- Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
- Structural and MEP drawing review systems
How this page was researched: Conversations with licensed structural engineers and structural peer reviewers across building, bridge, and institutional projects.
Last reviewed by Manas Gandhi · August 16, 2026
Other use cases for structural engineers
Pre-Permit Review for other roles
Should structural engineers use Helonic for pre-permit review?
Yes. Helonic catches the issues that matter most to structural engineers before they become rework. Upload your drawings for a free analysis.